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Thread: HK 91 22lr conversion kit

  1. #11
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    Quote Originally Posted by viriceman View Post
    I had one cut down for a dedicated .22lr 51k. Works great with high powered ammo but needs a suppressor for the lower powered stuff.
    how does the end of the 22 barrel insert secure to the stock barrel? Can you use a 30 caliber suppressor for .22 or do you need a 22 can?

  2. #12
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    Default HK 91 22lr conversion kit

    Quote Originally Posted by chune View Post
    how does the end of the 22 barrel insert secure to the stock barrel? Can you use a 30 caliber suppressor for .22 or do you need a 22 can?
    if you look in the upper right corner of the box you will see the chamber end of the barrel insert it is secured into the receiver via the spring clip/ring that you should be able to see that locks into the area where the bolt head would normally be in the receiver. I don't know about suppressor question sorry. The pics are of member GZire's kit he let me try it out one afternoon, thanks again!



    Sent from my iPhone using Tapatalk

  3. #13
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    Quote Originally Posted by chune View Post
    how does the end of the 22 barrel insert secure to the stock barrel? Can you use a 30 caliber suppressor for .22 or do you need a 22 can?
    The barrel insert is "held" in by the chamber end and mine is flush with the end of the barrel so I can add a 15x1 to 1/2x28 adaptor (TROS) to attach various .22 cans. You could use a .308 can if you wish, but since the 22s are so dirty, I prefer to use my take apart .22 models.

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  5. #14
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    Quote Originally Posted by viriceman View Post
    The barrel insert is "held" in by the chamber end and mine is flush with the end of the barrel so I can add a 15x1 to 1/2x28 adaptor (TROS) to attach various .22 cans. You could use a .308 can if you wish, but since the 22s are so dirty, I prefer to use my take apart .22 models.
    /This\

    Here's a PTR91 w/.22 conversion kit installed and a .22 suppressor attached in the very manner described by vriceman.

    Sparkplugs are irrelevant.
    Plenty of HK's and clones.

  6. #15
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    Diesel,

    I can't wait until I figure out how to post a video of my "mini-dragon" spitting out brass.

    Took me long enough to figure out how to post pix:)

  7. #16
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    Quote Originally Posted by viriceman View Post
    The barrel insert is "held" in by the chamber end and mine is flush with the end of the barrel so I can add a 15x1 to 1/2x28 adaptor (TROS) to attach various .22 cans. You could use a .308 can if you wish, but since the 22s are so dirty, I prefer to use my take apart .22 models.
    I’m confused. How did you get the 22 can to work? I get that there is the 15x1 to 1/2x28 adapter, but how do you guarantee the 22 insert with the adapter kit lines up properly with the can? It would suck to have a baffle strike or worse.


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  8. #17
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    It relies on German engineering. The insert fits with better precision than any can...

    DG
    sickness likes this.
    I fix the radar you'all try to stay under...

  9. #18
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    Who built you 51k any pics

  10. #19
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    Quote Originally Posted by Conelrad View Post
    It relies on German engineering. The insert fits with better precision than any can...

    DG
    How can you be sure the barrel insert with the 22 adapter kit lines up perfectly with the 22 suppressor?


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  11. #20
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    Quote Originally Posted by ScottRod View Post
    How can you be sure the barrel insert with the 22 adapter kit lines up perfectly with the 22 suppressor?
    Sent from my iPhone using Tapatalk Pro
    Buy quality parts that are likely to be concentric. Assemble the thing, and insert a long .22 cleaning rod down your .22 inner barrel and make sure it safely passes through.
    Own: HK91, SR9, SP5k, G36k, HK416, P30L, 2x P8, 2x P8A1, USP9
    Future: Done, until HK comes out with something new & nifty. Might start building an FNH collection.

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